Topology monitoring implementation of network management system in TWAREN hybrid network

Abstract

TWAREN (TaiWan Advanced Research and Education Network)is a hybrid network composed of several types of networkservices including Layer1 (Light-path), Layer2 (VLAN, MPLSVPNand VPLS-VPN), Layer3 (research networks peering andtransit) and Layer7 (SSL VPN). To develop a networkmanagement system for such kind of hybrid networks, we mustfirstly be able to construct the physical network topology,therefore the logical network services can then be mapped and anaccurate monitoring and alarming system can be possible.However the automatic physical topology discovery is extremelyhard and complicated in the hybrid network. In this paper, wepropose our preliminary design on automatically detecting thehybrid network physical topology in TWAREN